lifecycle-policy

name	lifecycle-policy
description	生命周期策略 — 保留/备份/过期/清理策略引擎，适用于记忆和资产的统一生命周期管理
version	1.0.0
license	MIT
metadata	{"author":"blackplume233","actant-tags":"lifecycle,retention,backup,curator","layer":"kernel","agent":"curator"}

Lifecycle Policy

Overview

Retention, backup, expiration, and cleanup policy engine. Applies to both memories and assets for unified lifecycle management.

Retention Policy

Purpose: Define how long to keep data before archival or deletion.

• maxAge: Maximum age (e.g. 90 days); older items are subject to onExpiry
• maxSize: Maximum total size (e.g. 10GB); when exceeded, evict oldest or lowest-value
• onExpiry: Action when retention limit reached:
  • archive: Move to cold storage (read-only, excluded from normal retrieval)
  • delete: Permanently remove
  • notify: Alert user; defer action until acknowledged
• Scope: Per asset type, per Template, or global default

Backup Policy

Purpose: Create recoverable snapshots of critical state.

• Config snapshots: Before config changes; store last N versions
• Data export: Periodic export of memories, activity logs, asset metadata
• Schedule: Time-based (daily, weekly) or event-based (before major change)
• Storage: Local backup dir or external (user-configured)

Capacity Governance

Purpose: Monitor disk usage and prevent overflow.

• Monitor: Track disk usage for workspace, logs, temp, backups
• Thresholds: Warn at 80%, critical at 95%
• Over-limit actions:
  • Notify user with breakdown (what's using space)
  • Auto-cleanup: temp files, old logs, expired archives
  • Delegate to Scavenger: orphan cleanup, aggressive reclaim
• Escalation: If auto-cleanup insufficient, block new writes and alert

Expired Asset Archival / Cleanup

Purpose: Apply retention policy to assets and memories.

• Expired assets: Mark as archived; move to archive storage or delete per policy
• Expired memories: Apply confidence decay; archive or evict per memory-governance rules
• Audit: Log all archival/deletion for compliance and debugging

Orphan Asset Detection

Purpose: Identify assets no longer referenced by any active Agent or user.

• Orphan criteria: No Agent references; no recent access; owner Agent destroyed
• Detection: Periodic scan; cross-reference with Agent registry, Template refs
• Actions:
  • Report to user: "Asset X is orphaned; archive or delete?"
  • Auto-archive: If policy allows, move to orphan archive
  • Delegate to Scavenger: Reclaim disk, remove from registry
• Safety: Never auto-delete without explicit policy; prefer archive + notify